HOWTO: Add and Use a Tape Drive in a Zone
This is just a quick one that may come in handy to someone, or me again in the future.
Adding a tape drive to a zone is quite a quick simple process.
- Add the device to the zone configuration from the global zone:
[devon:~] # zonecfg -z myzone zonecfg:myzone> add device zonecfg:myzone:device> set match=/dev/rmt/0n zonecfg:myzone:device> end zonecfg:myzone> verify zonecfg:myzone> commit zonecfg:myzone> exit [devon:~] # - Reboot the zone:
You need to reboot the zone, because
[devon:~] # zoneadm -z myzone rebootdevfsadmdoesn't work in a local zone:[myzone:~] # devfsadm devfsadm: open failed for /dev/.devfsadm_dev.lock: Permission denied [myzone:~] # mt status /dev/rmt/0n: No such file or directory [myzone:~] #
Once the local zone has rebooted, you should now have access to your tape drive and be able to use it as normal:
[myzone:~] # mt status
HP DDS-4 DAT (Sun) tape drive:
sense key(0x0)= No Additional Sense residual= 0 retries= 0
file no= 0 block no= 0
[myzone:~] # tar -cvf /dev/rmt/0n var
a var/ 0 tape blocks
a var/sadm/ 0 tape blocks
a var/sadm/system/ 0 tape blocks
a var/sadm/system/logs/ 0 tape blocks
a var/sadm/system/logs/install_log 115 tape blocks
a var/sadm/system/logs/sysidtool.log 37 tape blocks
[...]
[myzone:~] # mt rewind
[myzone:~] # tar -tvf /dev/rmt/0n
drwxr-xr-x 0/3 0 Feb 14 16:53 2007 var/
drwxr-xr-x 0/3 0 Sep 28 12:46 2006 var/sadm/
drwxr-xr-x 0/3 0 Apr 18 09:27 2006 var/sadm/system/
drwxr-xr-x 0/3 0 Feb 14 16:45 2007 var/sadm/system/logs/
-rw-r--r-- 0/0 58510 Feb 14 16:35 2007 var/sadm/system/logs/install_log
[...]
[myzone:~] #Just remember, you can only backup filesystems accessible from this zone.